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            <h1 id="seo-header">threejs入门(二)--让模型移动 wasd</h1>
            
            
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                <h1 id="一、创建ThreeWASDView-vue"><a href="#一、创建ThreeWASDView-vue" class="headerlink" title="一、创建ThreeWASDView.vue"></a>一、创建ThreeWASDView.vue</h1><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span 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class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br></pre></td><td class="code"><pre><code class="hljs html"><span class="hljs-tag">&lt;<span class="hljs-name">template</span>&gt;</span><br>  <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">id</span>=<span class="hljs-string">&quot;threeInit&quot;</span>&gt;</span><br>  <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span><br><span class="hljs-tag">&lt;/<span class="hljs-name">template</span>&gt;</span><br><span class="hljs-tag">&lt;<span class="hljs-name">script</span>&gt;</span><span class="language-javascript"></span><br><span class="language-javascript"><span class="hljs-keyword">import</span> * <span class="hljs-keyword">as</span> <span class="hljs-variable constant_">THREE</span> <span class="hljs-keyword">from</span> <span class="hljs-string">&#x27;three&#x27;</span></span><br><span class="language-javascript"><span class="hljs-keyword">import</span> &#123; <span class="hljs-title class_">GLTFLoader</span> &#125; <span class="hljs-keyword">from</span> <span class="hljs-string">&#x27;three/examples/jsm/loaders/GLTFLoader.js&#x27;</span></span><br><span class="language-javascript"><span class="hljs-keyword">let</span> scene, camera, renderer, model</span><br><span class="language-javascript"><span class="hljs-keyword">let</span> left, right, front, back</span><br><span class="language-javascript"><span class="hljs-keyword">export</span> <span class="hljs-keyword">default</span> &#123;</span><br><span class="language-javascript">  <span class="hljs-attr">methods</span>: &#123;</span><br><span class="language-javascript">	<span class="hljs-title function_">init</span>(<span class="hljs-params"></span>) &#123;</span><br><span class="language-javascript">	  <span class="hljs-comment">// 初始化场景</span></span><br><span class="language-javascript">	  scene = <span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Scene</span>()</span><br><span class="language-javascript">	  scene.<span class="hljs-property">background</span> = <span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Color</span>(<span class="hljs-number">0xffffff</span>)</span><br><span class="language-javascript"></span><br><span class="language-javascript">	  <span class="hljs-comment">// 初始化相机</span></span><br><span class="language-javascript">	  camera = <span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">PerspectiveCamera</span>(<span class="hljs-number">75</span>, <span class="hljs-variable language_">window</span>.<span class="hljs-property">innerWidth</span> / <span class="hljs-variable language_">window</span>.<span class="hljs-property">innerHeight</span>, <span class="hljs-number">0.1</span>, <span class="hljs-number">1000</span>)</span><br><span class="language-javascript">	  camera.<span class="hljs-property">position</span>.<span class="hljs-title function_">set</span>(<span class="hljs-number">0</span>, <span class="hljs-number">5</span>, <span class="hljs-number">5</span>)</span><br><span class="language-javascript">	  camera.<span class="hljs-title function_">lookAt</span>(scene.<span class="hljs-property">position</span>)</span><br><span class="language-javascript">	  scene.<span class="hljs-title function_">add</span>(camera)</span><br><span class="language-javascript"></span><br><span class="language-javascript">	  <span class="hljs-comment">// 加载模型</span></span><br><span class="language-javascript">	  <span class="hljs-keyword">const</span> loader = <span class="hljs-keyword">new</span> <span class="hljs-title class_">GLTFLoader</span>()</span><br><span class="language-javascript">	  loader.<span class="hljs-title function_">load</span>( <span class="hljs-string">&#x27;/3d/gltf/eve.glb&#x27;</span>, <span class="hljs-keyword">function</span> (<span class="hljs-params"> gltf </span>) &#123;</span><br><span class="language-javascript">		scene.<span class="hljs-title function_">add</span>( gltf.<span class="hljs-property">scene</span> )</span><br><span class="language-javascript">		model = gltf.<span class="hljs-property">scene</span></span><br><span class="language-javascript">	  &#125;, <span class="hljs-literal">undefined</span>, <span class="hljs-keyword">function</span> (<span class="hljs-params"> error </span>) &#123;</span><br><span class="language-javascript">		<span class="hljs-variable language_">console</span>.<span class="hljs-title function_">error</span>( error )</span><br><span class="language-javascript">	  &#125; )</span><br><span class="language-javascript"></span><br><span class="language-javascript">	  <span class="hljs-comment">// 创建地面</span></span><br><span class="language-javascript"></span><br><span class="language-javascript">	  <span class="hljs-comment">//坐标系</span></span><br><span class="language-javascript">	  <span class="hljs-keyword">var</span> axesHelper = <span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">AxesHelper</span>(<span class="hljs-number">5</span>, <span class="hljs-number">5</span>, <span class="hljs-number">5</span>)</span><br><span class="language-javascript">	  scene.<span class="hljs-title function_">add</span>(axesHelper)</span><br><span class="language-javascript"></span><br><span class="language-javascript">	  <span class="hljs-comment">// 环境光</span></span><br><span class="language-javascript">	  <span class="hljs-keyword">var</span> ambientLight = <span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">AmbientLight</span>(<span class="hljs-number">0xffffff</span>)</span><br><span class="language-javascript">	  scene.<span class="hljs-title function_">add</span>(ambientLight)</span><br><span class="language-javascript">	  <span class="hljs-comment">// 平行光</span></span><br><span class="language-javascript">	  <span class="hljs-keyword">var</span> directionalLight = <span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">DirectionalLight</span>(<span class="hljs-number">0xffffff</span>)</span><br><span class="language-javascript">	  directionalLight.<span class="hljs-property">position</span>.<span class="hljs-title function_">set</span>(<span class="hljs-number">1</span>, <span class="hljs-number">0.75</span>, <span class="hljs-number">0.5</span>).<span class="hljs-title function_">normalize</span>()</span><br><span class="language-javascript">	  scene.<span class="hljs-title function_">add</span>(directionalLight)</span><br><span class="language-javascript"></span><br><span class="language-javascript">	  <span class="hljs-comment">// 初始化渲染器</span></span><br><span class="language-javascript">	  renderer = <span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">WebGLRenderer</span>(&#123; <span class="hljs-attr">antialias</span>: <span class="hljs-literal">true</span> &#125;)</span><br><span class="language-javascript">	  renderer.<span class="hljs-property">shadowMap</span>.<span class="hljs-property">enabled</span> = <span class="hljs-literal">true</span></span><br><span class="language-javascript">	  renderer.<span class="hljs-title function_">setPixelRatio</span>(<span class="hljs-variable language_">window</span>.<span class="hljs-property">devicePixelRatio</span>)</span><br><span class="language-javascript">	  renderer.<span class="hljs-title function_">setSize</span>(<span class="hljs-variable language_">window</span>.<span class="hljs-property">innerWidth</span>, <span class="hljs-variable language_">window</span>.<span class="hljs-property">innerHeight</span>)</span><br><span class="language-javascript">	  <span class="hljs-variable language_">document</span>.<span class="hljs-title function_">getElementById</span>(<span class="hljs-string">&#x27;threeInit&#x27;</span>).<span class="hljs-title function_">appendChild</span>(renderer.<span class="hljs-property">domElement</span>)</span><br><span class="language-javascript">	&#125;,</span><br><span class="language-javascript">	<span class="hljs-title function_">animate</span>(<span class="hljs-params"></span>) &#123;</span><br><span class="language-javascript">	  <span class="hljs-title function_">requestAnimationFrame</span>(<span class="hljs-variable language_">this</span>.<span class="hljs-property">animate</span>)</span><br><span class="language-javascript">	  renderer.<span class="hljs-title function_">render</span>(scene, camera)</span><br><span class="language-javascript">	  <span class="hljs-keyword">if</span>(model) &#123;</span><br><span class="language-javascript">		<span class="hljs-keyword">let</span> vect = model.<span class="hljs-title function_">getWorldDirection</span>(<span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Vector3</span>());</span><br><span class="language-javascript">		<span class="hljs-keyword">if</span> (front) &#123;</span><br><span class="language-javascript">		  model.<span class="hljs-property">position</span>.<span class="hljs-property">z</span> += vect.<span class="hljs-title function_">dot</span>(<span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Vector3</span>(<span class="hljs-number">0</span>, <span class="hljs-number">0</span>, <span class="hljs-number">15</span>)) * <span class="hljs-number">0.05</span>;</span><br><span class="language-javascript">		  model.<span class="hljs-property">position</span>.<span class="hljs-property">x</span> += vect.<span class="hljs-title function_">dot</span>(<span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Vector3</span>(<span class="hljs-number">15</span>, <span class="hljs-number">0</span>, <span class="hljs-number">0</span>)) * <span class="hljs-number">0.05</span>;</span><br><span class="language-javascript">		&#125;</span><br><span class="language-javascript">		<span class="hljs-keyword">if</span> (back) &#123;</span><br><span class="language-javascript">		  model.<span class="hljs-property">position</span>.<span class="hljs-property">z</span> -= vect.<span class="hljs-title function_">dot</span>(<span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Vector3</span>(<span class="hljs-number">0</span>, <span class="hljs-number">0</span>, <span class="hljs-number">15</span>)) * <span class="hljs-number">0.05</span>;</span><br><span class="language-javascript">		  model.<span class="hljs-property">position</span>.<span class="hljs-property">x</span> -= vect.<span class="hljs-title function_">dot</span>(<span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Vector3</span>(<span class="hljs-number">15</span>, <span class="hljs-number">0</span>, <span class="hljs-number">0</span>)) * <span class="hljs-number">0.05</span>;</span><br><span class="language-javascript">		&#125;</span><br><span class="language-javascript">		<span class="hljs-keyword">if</span> (left) &#123;</span><br><span class="language-javascript">		  model.<span class="hljs-property">position</span>.<span class="hljs-property">x</span> += vect.<span class="hljs-title function_">dot</span>(<span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Vector3</span>(<span class="hljs-number">0</span>, <span class="hljs-number">0</span>, <span class="hljs-number">15</span>)) * <span class="hljs-number">0.05</span>;</span><br><span class="language-javascript">		  model.<span class="hljs-property">position</span>.<span class="hljs-property">z</span> += vect.<span class="hljs-title function_">dot</span>(<span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Vector3</span>(-<span class="hljs-number">15</span>, <span class="hljs-number">0</span>, <span class="hljs-number">0</span>)) * <span class="hljs-number">0.05</span>;</span><br><span class="language-javascript">		&#125;</span><br><span class="language-javascript">		<span class="hljs-keyword">if</span> (right) &#123;</span><br><span class="language-javascript">		  model.<span class="hljs-property">position</span>.<span class="hljs-property">x</span> -= vect.<span class="hljs-title function_">dot</span>(<span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Vector3</span>(<span class="hljs-number">0</span>, <span class="hljs-number">0</span>, <span class="hljs-number">15</span>)) * <span class="hljs-number">0.05</span>;</span><br><span class="language-javascript">		  model.<span class="hljs-property">position</span>.<span class="hljs-property">z</span> -= vect.<span class="hljs-title function_">dot</span>(<span class="hljs-keyword">new</span> <span class="hljs-variable constant_">THREE</span>.<span class="hljs-title class_">Vector3</span>(-<span class="hljs-number">15</span>, <span class="hljs-number">0</span>, <span class="hljs-number">0</span>)) * <span class="hljs-number">0.05</span>;</span><br><span class="language-javascript">		&#125;</span><br><span class="language-javascript">	  &#125;</span><br><span class="language-javascript">	&#125;,</span><br><span class="language-javascript">	<span class="hljs-title function_">initResize</span>(<span class="hljs-params"></span>) &#123;</span><br><span class="language-javascript">	  <span class="hljs-variable language_">window</span>.<span class="hljs-title function_">addEventListener</span>(<span class="hljs-string">&#x27;resize&#x27;</span>, <span class="hljs-function">() =&gt;</span> &#123;</span><br><span class="language-javascript">		camera.<span class="hljs-property">aspect</span> = <span class="hljs-variable language_">window</span>.<span class="hljs-property">innerWidth</span> / <span class="hljs-variable language_">window</span>.<span class="hljs-property">innerHeight</span></span><br><span class="language-javascript">		camera.<span class="hljs-title function_">updateProjectionMatrix</span>()</span><br><span class="language-javascript">		renderer.<span class="hljs-title function_">setPixelRatio</span>(<span class="hljs-variable language_">window</span>.<span class="hljs-property">devicePixelRatio</span>)</span><br><span class="language-javascript">		renderer.<span class="hljs-title function_">setSize</span>(<span class="hljs-variable language_">window</span>.<span class="hljs-property">innerWidth</span>, <span class="hljs-variable language_">window</span>.<span class="hljs-property">innerHeight</span>)</span><br><span class="language-javascript">	  &#125;)</span><br><span class="language-javascript">	&#125;,</span><br><span class="language-javascript">	<span class="hljs-title function_">initCtroll</span>(<span class="hljs-params"></span>) &#123;</span><br><span class="language-javascript">	  <span class="hljs-variable language_">window</span>.<span class="hljs-title function_">addEventListener</span>(<span class="hljs-string">&#x27;keydown&#x27;</span>, <span class="hljs-function">(<span class="hljs-params">e</span>) =&gt;</span> &#123;</span><br><span class="language-javascript">		<span class="hljs-keyword">switch</span> (e.<span class="hljs-property">keyCode</span>) &#123;</span><br><span class="language-javascript">		  <span class="hljs-keyword">case</span> <span class="hljs-number">65</span>: <span class="hljs-comment">// a</span></span><br><span class="language-javascript">			left = <span class="hljs-literal">true</span></span><br><span class="language-javascript">			<span class="hljs-keyword">break</span></span><br><span class="language-javascript">		  <span class="hljs-keyword">case</span> <span class="hljs-number">68</span>: <span class="hljs-comment">// d</span></span><br><span class="language-javascript">			right = <span class="hljs-literal">true</span></span><br><span class="language-javascript">			<span class="hljs-keyword">break</span></span><br><span class="language-javascript">		  <span class="hljs-keyword">case</span> <span class="hljs-number">83</span>: <span class="hljs-comment">// s</span></span><br><span class="language-javascript">			back = <span class="hljs-literal">true</span></span><br><span class="language-javascript">			<span class="hljs-keyword">break</span></span><br><span class="language-javascript">		  <span class="hljs-keyword">case</span> <span class="hljs-number">87</span>: <span class="hljs-comment">// w</span></span><br><span class="language-javascript">			front = <span class="hljs-literal">true</span></span><br><span class="language-javascript">			<span class="hljs-keyword">break</span></span><br><span class="language-javascript">		 &#125;</span><br><span class="language-javascript">	  &#125;)</span><br><span class="language-javascript">	  <span class="hljs-variable language_">window</span>.<span class="hljs-title function_">addEventListener</span>(<span class="hljs-string">&#x27;keyup&#x27;</span>, <span class="hljs-function">() =&gt;</span> &#123;</span><br><span class="language-javascript">		<span class="hljs-keyword">switch</span> (event.<span class="hljs-property">keyCode</span>) &#123;</span><br><span class="language-javascript">		  <span class="hljs-keyword">case</span> <span class="hljs-number">65</span>: <span class="hljs-comment">// a</span></span><br><span class="language-javascript">			left = <span class="hljs-literal">false</span></span><br><span class="language-javascript">			<span class="hljs-keyword">break</span></span><br><span class="language-javascript">		  <span class="hljs-keyword">case</span> <span class="hljs-number">68</span>: <span class="hljs-comment">// d</span></span><br><span class="language-javascript">			right = <span class="hljs-literal">false</span></span><br><span class="language-javascript">			<span class="hljs-keyword">break</span></span><br><span class="language-javascript">		  <span class="hljs-keyword">case</span> <span class="hljs-number">83</span>: <span class="hljs-comment">// s</span></span><br><span class="language-javascript">			back = <span class="hljs-literal">false</span></span><br><span class="language-javascript">			<span class="hljs-keyword">break</span></span><br><span class="language-javascript">		  <span class="hljs-keyword">case</span> <span class="hljs-number">87</span>: <span class="hljs-comment">// w</span></span><br><span class="language-javascript">			front = <span class="hljs-literal">false</span></span><br><span class="language-javascript">			<span class="hljs-keyword">break</span></span><br><span class="language-javascript">		 &#125;</span><br><span class="language-javascript">	  &#125;)</span><br><span class="language-javascript">	&#125;</span><br><span class="language-javascript">  &#125;,</span><br><span class="language-javascript">  <span class="hljs-title function_">mounted</span>(<span class="hljs-params"></span>) &#123;</span><br><span class="language-javascript">	<span class="hljs-variable language_">this</span>.<span class="hljs-title function_">init</span>()</span><br><span class="language-javascript">	<span class="hljs-variable language_">console</span>.<span class="hljs-title function_">log</span>(model)</span><br><span class="language-javascript">	<span class="hljs-variable language_">this</span>.<span class="hljs-title function_">animate</span>()</span><br><span class="language-javascript">	<span class="hljs-variable language_">this</span>.<span class="hljs-title function_">initResize</span>()</span><br><span class="language-javascript"></span><br><span class="language-javascript">	<span class="hljs-variable language_">this</span>.<span class="hljs-title function_">initCtroll</span>()</span><br><span class="language-javascript">  &#125;</span><br><span class="language-javascript">&#125;</span><br><span class="language-javascript"></span><span class="hljs-tag">&lt;/<span class="hljs-name">script</span>&gt;</span><br></code></pre></td></tr></table></figure>
<h1 id="二、效果"><a href="#二、效果" class="headerlink" title="二、效果"></a>二、效果</h1><p><a target="_blank" rel="noopener" href="http://localhost:8080/threeWASD" title="wasd模型移动"><img src="https://xy94.top/static/three/threeWASD.jpg" srcset="/img/loading.gif" lazyload alt="wasd模型移动" title="wasd模型移动"></a></p>

                
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